Complete filmography
Everything Brían F. O'Byrne is credited on. Titles we have reviewed carry their Fi1m score; press Request a review on any other and it goes on our list.
2020s
Prisoner 2026Seriesas Harrison Dempsey · 6 eps
The Abandons 2025Seriesas Walter Paxton · 7 eps
Dead of Winter 2025as Tall Hunter
Task 2025Seriesas Charlie BoylanFi1m 67
Conclave 2024as O'MalleyFi1m 76
Twig 2024as Leon
The Wonder 2022as John FlynnFi1m 63
My Salinger Year 2020as Hugh
Sergio 2020as Gil Loescher
Lincoln Rhyme: Hunt for the Bone Collector 2020Seriesas The Bone Collector · 10 eps
2010s
Hatton Garden 2019Seriesas Basil · 4 eps
Nightflyers 2018Seriesas Auggie · 10 eps
Manhunt 2017Seriesas Frank McAlpine · 5 eps
Little Boy Blue 2017Seriesas Steve Jones · 4 eps
The Magicians 2015Seriesas Mayakovsky · 3 eps
Saints & Strangers 2015Seriesas John Billington · 2 eps
The Bastard Executioner 2015Seriesas Baron Ventris · 1 ep
Aquarius 2015Seriesas Ken Karn · 13 eps
Queen & Country 2015as RSM Digby
The Last Ship 2014Seriesas Sean Ramsey · 8 epsFi1m 67
Jimmy's Hall 2014as Commander O'Keefe
Medeas 2013as Ennis
Gilded Lilys 2013as Edwin Lily
Prime Suspect 2011Seriesas Reg Duffy · 13 eps